Last month, San Diego County recorded its best month in home sales in six years for a December, the latest numbers from DataQuick show. Last month's tally was 3,757 transactions. The previous high for a December was 3,823 in 2006.

Here are the Top 20 ZIP codes that saw the biggest percentage jumps in sales when comparing December of this year to the same month a year ago. Areas with at least 10 sales were logged are included in the list.